<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="vue.js"></script>
</head>
<body>

<!--文本插值-->

<div id="app">
    {{message}}
</div>

<script>
const app=  new Vue({
        el: '#app',
        data: {
            message: 'Hello Vue!'
        }
    })
</script>

</body>
</html>

